Title (de)

Title (fr)

Publication

Application

Priority

US 788201 A 20011206

Abstract (en)

A half sine wave resonant drive circuit provides a greater duty cycle range of operation without a loss in power, particularly at higher frequencies. A resonant circuit (32) is capacitivly coupled to a single switching device (36) to provide the greater duty cycle range by recycling the gate charge of the switching device through the resonant circuit. A half sine wave drive signal is thereby produced from an input square wave signal. The driving amplitude is constant for operation over the range of duty cycles. <IMAGE>